body{
  margin: 0px;  
}

#box1{
  border: 5px solid;
  width: 250px;
  height: 250px;
  font-size: 22px;
  background: red;
  
  margin: 10%;
}

#box2{
  border: 5px solid;
  width: 250px;
  height: 250px;
  font-size: 22px;
  background: green;
  
}